For a while now, there are channels on my Panasonic television that are unable to be heard, or the language comes out in Spanish. I've tried checking the subtitles, turning the volume up, & nothing seems to work. It seems that this is happening to more & more channels. Sometimes it goes away on these channels for a while, but it's always coming back. Please help.

Many TV’s and tuners have the ability to receive the SAP channel audio. SAP is a “secondary audio programming” that often delivers the audio in a different language, or sometimes a completely different audio program.

Have you checked the manual to see if your TV or tuner has been setup to receive the SAP channel only?

Also - If you’re trying to watch over-the-air TV, you now need a digital tuner to receive channels in Canada (except for a few remote locations in the North). The United States switched over back in June 2009, except for a few low-power stations that have been permitted to broadcast analog until Sept 2015.